Supplier | Z1 | Z2 | Z3 |
1 | −3.80284 | 3.010255 | 3.54424522 |
2 | −3.08909 | −7.669 | −0.57220002 |
3 | −7.30337 | 3.08135712 | −2.35426568 |
4 | 14.1953 | 1.57738807 | −0.61777823 |